Real-time video compression
There are provided a method, a system and machine-readable medium for encoding a video broadcast. The method includes obtaining one or more first compression settings for the video broadcast from an electronic program guide (EPG), the EPG associating the video broadcast with the one or more first compression settings. The method further includes compressing the video broadcast using the one or more first compression settings into a distribution broadcast. Yet further, the method includes distributing the distribution broadcast. There is also provided a method, system and machine readable medium to provide compression settings for encoding a video broadcast. The method includes inserting one or more compression settings into an electronic program guide (EPG) in association with the video broadcast based on a content type of the video broadcast. The method further includes distributing the EPG.
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Example embodiments relate generally to digital video broadcasting. More particularly, example embodiments are directed to a system and method for real-time content-based compression of digital video broadcasts, as well as for provision of compression settings therefor.
BACKGROUNDRecent developments in digital technology have spurred the development and deployment of digital video broadcasting services. The digital video broadcasting services not only broadcast high quality video programming, including high-definition (HD) programs, but also provide the ability to broadcast data including an electronic program guide (EPG). Digital broadcast programs are typically provided by satellite broadcasters, terrestrial broadcasters and cable broadcasters. More recently, digital broadcast programs have also been deployed via the Internet Protocol (IP) by major telecommunication provides.
Video broadcasters have traditionally distributed video broadcasts to viewers using a variety of broadcasting standards, including the analog National Television Standard Committee (NTSC) standard. More recently, with the constant expansion of the number of video broadcast channels, HD video broadcasts and provision of data (including EPG), all of which have placed a premium on bandwidth for transmission, the distribution of video broadcasts has been achieved via digital standards, including the Advanced Technical Systems Committee (ATSC) standard, which use compression techniques to compress the video broadcasts being transmitted. Other digital standards which use compression include the Moving Picture Experts Group H.262 (MPEG-2) standard, the H.264 (MPEG-4) standard and the Digital Video Broadcasting (DVB) standard. While the foregoing standards provide for in-band transmission of EPG with the transmission of the video programming, typically EPG data has been provided out-of-band from the video programming by third-party aggregators of programming schedules, such as Tribune TV and Gemstar.
Digital video broadcasts are transmitted or distributed from the aforementioned video broadcasters via a variety of distributions systems to an end user's digital set top box (STB) which decodes the digital video signal for display on a video display device (e.g., television). The digital video signal may be received by the STB via a satellite dish, a coaxial cable, a telephone line (including digital subscriber line (DSL)), Ethernet, local and wide area wireless technologies, and the like.
Compression techniques used by the foregoing digital broadcasting standards have evolved significantly since their introduction. However, the video broadcasters have not been able to adapt these digital standards for the content of the digital broadcast programs on a dynamic basis. Dynamic content-based compression can improve end user experience and can also reduce transmission load over video broadcasters' distributions systems.
Some embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings in which:
An example system, method and machine readable medium for real-time content-based compression of digital video broadcasts are described. Also described are an example system, method and machine readable medium for the provision of compression settings. In the following description, for the purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of example embodiments. It will be evident, however, to one skilled in the art that an example embodiment may be practiced without these specific details.
Some example embodiments include a system, method and machine readable medium to encode a video broadcast as follows.
In accordance with one example embodiment, there is provided a method for encoding a video broadcast, the method comprising: obtaining one or more first compression settings for the video broadcast from an electronic program guide (EPG), the EPG associating the video broadcast with the one or more first compression settings; compressing the video broadcast using the one or more first compression settings into a distribution broadcast; and distributing the distribution broadcast.
In accordance with another example embodiment, there is provided a system for encoding a video broadcast, the system comprising: a reception/extraction module adapted to obtain one or more first compression settings for the video broadcast from an electronic program guide (EPG), the EPG associating the video broadcast with the one or more first compression settings; a compression module adapted to compress the video broadcast using the one or more first compression settings into a distribution broadcast; and a distribution/broadcast module adapted to distribute the distribution broadcast.
In accordance with yet another example embodiment, there is provided a machine-readable medium including instructions executable by the machine for encoding a video broadcast, the instructions causing the machine: obtain one or more first compression settings for the video broadcast from an electronic program guide (EPG), the EPG associating the video broadcast with the one or more first compression settings; compress the video broadcast using the one or more first compression settings into a distribution broadcast; and distribute the distribution broadcast.
Other example embodiments include a system, method and machine readable medium to provide compression settings for encoding a video broadcast as follows.
In accordance with one example embodiment, there is provided a method to provide compression settings for encoding a video broadcast, the method comprising: inserting one or more compression settings into an electronic program guide (EPG) in association with the video broadcast based on a content type of the video broadcast; and distributing the EPG.
In accordance with another example embodiment, there is provided a system to provide compression settings for encoding a video broadcast, the system comprising: an electronic program guide source adapted to insert one or more compression settings into an electronic program guide (EPG) in association with the video broadcast based on a content type of the video broadcast, and adapted to distribute the EPG.
In accordance with yet another example embodiment, there is provided a machine-readable medium including instructions executable by the machine to provide compression settings for encoding a video broadcast, the instructions causing the machine to: insert one or more compression settings into an electronic program guide (EPG) in association with the video broadcast based on a content type of the video broadcast; and distribute the EPG.
As already noted above in reference to
Now with particular reference to the VHE 104 of
Further with reference to
Further with reference to the EPG data of
Now further with reference to
Further with reference to ad insertion of
Further with reference to
Still further with reference to
Lastly with reference to
Certain systems, apparatus, applications or processes are described herein as including a number of modules or mechanisms. A module or a mechanism may be a unit of distinct functionality that can provide information to, and receive information from, other modules. Accordingly, the described modules may be regarded as being communicatively coupled. Modules may also initiate communication with input or output devices, and can operate on a resource (e.g., a collection of information). The modules be implemented as hardware circuitry, optical components, single or multi-processor circuits, memory circuits, software program modules and objects, firmware, and combinations thereof, as appropriate for particular implementations of various embodiments.
Thus, an example system, method and machine readable medium for real-time content-based compression of digital video broadcasts have been described. Although specific example embodiments have been described, it will be evident that various modifications and changes may be made to these embodiments without departing from the broader spirit and scope of the invention. Accordingly, the specification and drawings are to be regarded in an illustrative rather than a restrictive sense. The accompanying drawings that form a part hereof, show by way of illustration, and not of limitation, specific embodiments in which the subject matter may be practiced. The embodiments illustrated are described in sufficient detail to enable those skilled in the art to practice the teachings disclosed herein. Other embodiments may be utilized and derived therefrom, such that structural and logical substitutions and changes may be made without departing from the scope of this disclosure. This Detailed Description, therefore, is not to be taken in a limiting sense, and the scope of various embodiments is defined only by the appended claims, along with the full range of equivalents to which such claims are entitled.
Such embodiments of the inventive subject matter may be referred to herein, individually and/or collectively, by the term “invention” merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Thus, although specific embodiments have been illustrated and described herein, it should be appreciated that any arrangement calculated to achieve the same purpose may be substituted for the specific embodiments shown. This disclosure is intended to cover any and all adaptations or variations of various embodiments. Combinations of the above embodiments, and other embodiments not specifically described herein, will be apparent to those of skill in the art upon reviewing the above description.
The Abstract is provided to comply with 37 C.F.R. §1.72(b) and will allow the reader to quickly ascertain the nature and gist of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
In the foregoing description of the embodiments, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting that the claimed embodiments have more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive subject matter lies in less than all features of a single disclosed embodiment. Thus the following claims are hereby incorporated into the Description of the Embodiments, with each claim standing on its own as a separate example embodiment.
Claims
1. A method for encoding a video broadcast, the method comprising:
- directly obtaining first compression settings for the video broadcast from data embedded within an electronic program guide (EPG), the EPG associating the video broadcast with the first compression settings, wherein the data identifies values for the first compression settings, wherein the data is the only source of the first compression settings, and wherein the first compression settings comprise a group of pictures compression setting, a color compression setting, and a 3/2 pull down compression setting;
- inserting an advertisement in the video broadcast using one or more advertisement compression settings separate from the first compression settings, the advertisement insertion being in response to an advertisement insertion signal from a video source;
- compressing the video broadcast using the first compression settings into a distribution broadcast; and
- distributing the distribution broadcast.
2. The method for encoding a video broadcast of claim 1, further comprising:
- inserting the first compression settings into the EPG in association with the video broadcast based on a content type of the video broadcast; and
- distributing the EPG out-of-band from the video broadcast.
3. The method for encoding a video broadcast of claim 2, wherein the EPG is received out-of-band from the video broadcast.
4. The method for encoding a video broadcast of claim 1, further comprising:
- inserting the EPG into video programming; and
- distributing the EPG in-band with the video programming.
5. The method for encoding a video broadcast of claim 4, wherein obtaining includes extracting EPG distributed in-band with the video programming.
6. The method for encoding a video broadcast of claim 1, wherein distributing includes distributing of the distribution broadcast from a super video head end (SVHE) to a video head end (VHE).
7. The method for encoding a video broadcast of claim 1, wherein distributing includes broadcasting the distribution broadcast from a video head (VHE) to a set top box (STB).
8. The method for encoding a video broadcast of claim 1, further comprising receiving the video broadcast from a video source, wherein the EPG includes EPG data for multiple video broadcasts where each video broad cast is identified by an event identifier and includes associated compression settings for each video broadcast within the EPG.
9. The method for encoding a video broadcast of claim 8, further comprising decompressing the received video broadcast into a first format.
10. The method for encoding a video broadcast of claim 9, wherein compressing includes compressing the video broadcast of the first format to the distribution broadcast of a second format.
11. The method for encoding a video broadcast of claim 10, wherein distributing includes distributing the distribution broadcast of the second format.
12. The method for encoding a video broadcast of claim 1, further comprising:
- determining whether each of the first compression settings is in a predetermined range; and
- selectively defaulting each of the first compression settings to a default value if not in the predetermined range.
13. The method for encoding a video broadcast of claim 1, further comprising compressing an advertisement into the distribution broadcast using one or more second compression settings.
14. A system for encoding a video broadcast, the system comprising:
- a reception/extraction module adapted to directly obtain first compression settings for the video broadcast from data stored within an electronic program guide (EPG), the EPG associating the video broadcast with the first compression settings, wherein the data identifies values for the first compression settings, and wherein the first compression settings comprise at least a group of pictures compression setting, a color compression setting, and a 3/2 pull down compression setting;
- a compression module adapted to compress the video broadcast using the one or more first compression settings into a distribution broadcast;
- an advertisement insertion module adapted to insert an advertisement in the video broadcast using one or more advertisement compression settings that are separate from the first compression settings, the advertisement insertion being in response to an advertisement insertion signal from a video source; and
- a distribution/broadcast module adapted to distribute the distribution broadcast.
15. The system for encoding a video broadcast of claim 14, further comprising an EPG source adapted to:
- insert the first compression settings into the EPG in association with the video broadcast based on a content type of the video broadcast, wherein the data is the only source of the first compression settings, and
- distribute the EPG out-of-band from the video broadcast.
16. The system for encoding a video broadcast of claim 15, wherein the reception/extraction module is further adapted to receive the EPG distributed out-of-band from the video broadcast.
17. The system for encoding a video broadcast of claim 14, further comprising a video source adapted to:
- insert the EPG into video programming; and distribute the EPG in-band with the video programming.
18. The system for encoding a video broadcast of claim 17, wherein the reception/extraction module is further adapted to extract EPG distributed in-band with the video programming.
19. The system for encoding a video broadcast of claim 14, wherein the distribution/broadcast module is further adapted to distribute the distribution broadcast from a super video head end (SVHE) to a video head end (VHE).
20. The system for encoding a video broadcast of claim 14, wherein the distribution/broadcast module is further adapted to broadcast the distribution broadcast from a video head (VHE) to a set top box (STB).
21. The system for encoding a video broadcast of claim 14, further comprising a video reception module adapted to receive the video broadcast from a video source.
22. The system for encoding a video broadcast of claim 21, wherein the video reception module is further adapted to decompress the received video broadcast into a first format.
23. The system for encoding a video broadcast of claim 22, wherein the compression module is further adapted to compress the video broadcast of the first format to the distribution broadcast of a second format.
24. The system for encoding a video broadcast of claim 23, wherein the distribution/broadcast module is further adapted to distribute the distribution broadcast of the second format.
25. The system for encoding a video broadcast of claim 14, further comprising a compression setting error checking module adapted to determine whether each of the one or more first compressing settings is in predetermined range, and selectively default each of the one or more first compressing settings to a default value if not in the predetermined range.
26. The system for encoding a video broadcast of claim 14, further comprising an ad insertion module adapted to compress an advertisement into the distribution broadcast using one or more second compression settings.
27. A non-transitory machine-readable medium including instructions executable by the machine for encoding a plurality of video broadcasts, the instructions causing the machine to:
- obtain first compression settings for each of the video broadcasts of the plurality of video broadcasts from data embedded within an electronic program guide (EPG), the EPG associating each of the video broadcasts with the first compression settings, wherein the data identifies values for the first compression settings, wherein the data is the only source of the first compression settings, and wherein the first compression settings comprise a group of pictures compression setting, a color compression setting, and a 3/2 pull down compression setting;
- insert an advertisement in one of the video broadcasts using one or more advertisement compression settings separate from the first compression settings, the advertisement insertion being in response to an advertisement insertion signal from a video source;
- compress one of the video broadcast using the one or more first compression settings and the advertisement using one or more advertisement compression settings into a distribution broadcast;
- insert one or more first compression settings into the EPG in association with the video broadcast based on a content type of the video broadcast;
- distribute the distribution broadcast; and
- distribute the EPG with the inserted first compression settings out-of-band from the video broadcast.
28. The machine-readable medium of claim 27, wherein the instructions causing the machine to obtain the first compression settings comprise instructions to receive the EPG distributed out-of-band from the video broadcast.
29. The machine-readable medium of claim 27, further comprising instructions causing the machine to:
- insert the EPG into video programming; and
- distribute the EPG in-band with the video programming.
30. The machine-readable medium of claim 27, wherein instructions causing the machine to obtain one or more first compression settings include instructions to extract EPG distributed in-band with the video programming.
31. The machine-readable medium of claim 27, wherein instructions causing the machine to distribute include instructions to distribute the distribution broadcast from a super video head end (SVHE) to a video head end (VHE).
32. The machine-readable medium of claim 27, instructions causing the machine to distribute include instructions to broadcast the distribution broadcast from a video head (VHE) to a set top box (STB).
33. The machine-readable medium of claim 27, wherein the instructions further cause the machine to receive the video broadcast from a video source.
34. The machine-readable medium of claim 33, wherein the instructions further cause the machine to decompress the received video broadcast into a first format.
35. The machine-readable medium of claim 34, wherein instructions causing the machine to compress further include instructions to compress the video broadcast of the first format to the distribution broadcast of a second format.
36. The machine-readable medium of claim 35, wherein instructions causing the machine to distribute further include instructions to distribute the distribution broadcast of the second format.
37. The machine-readable medium of claim 27, further comprising instructions causing the machine to:
- determine whether each of the first compressing settings is in predetermined range; and
- selectively default each of the first compressing settings to a default value if not in the predetermined range.
38. The machine-readable medium of claim 27, further comprising instructions causing the machine to compress an advertisement into the distribution broadcast using one or more second compression settings.
39. A method to provide compression settings for encoding a video broadcast, the method comprising:
- inserting compression settings into an electronic program guide (EPG) in association with the video broadcast based on a content type of the video broadcast, wherein the compression settings identify values for a group of pictures compression setting, a color compression setting, and a 3/2 pull down compression setting; and
- distributing the EPG.
40. The method for providing compression settings of claim 39, wherein distributing includes distributing the EPG out-of-band from the video broadcast.
41. The method for providing compression settings of claim 39, wherein distributing includes:
- inserting the EPG into video programming; and
- distributing the EPG in-band with the video programming.
42. A system to provide compression settings for encoding a video broadcast, the system comprising:
- an electronic program guide source adapted to insert compression settings into an electronic program guide (EPG) in association with the video broadcast based on a content type of the video broadcast, and adapted to distribute the EPG, wherein the compression settings identify values for a group of pictures compression setting, a color compression setting, and a 3/2 pull down compression setting.
43. The system to provide compression settings of claim 42, wherein the electronic program guide source is adapted to distribute the EPG out-of-band from the video broadcast.
44. The system to provide compression settings of claim 42, wherein the electronic program guide source is adapted to insert the EPG into video programming, and adapted to distribute the EPG in-band with the video programming.
45. A non-transitory machine-readable medium including instructions executable by the machine to provide compression settings for encoding a video broadcast, the instructions causing the machine to:
- embed compression settings directly into an electronic program guide (EPG) in association with the video broadcast based on a content type of the video broadcast, wherein the compression settings identify values for a group of pictures compression setting, a color compression setting, and a 3/2 pull down compression setting; and
- distribute the EPG.
46. The machine-readable medium of claim 45, wherein instructions causing the machine to distribute include instructions to distribute the EPG out-of-band from the video broadcast.
47. The machine-readable medium of claim 45, wherein instructions causing the machine to distribute include instructions to:
- insert the EPG into video programming; and
- distribute the EPG in-band with the video programming.
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Type: Grant
Filed: Mar 16, 2007
Date of Patent: Jul 19, 2011
Patent Publication Number: 20080229356
Assignee: AT&T Intellectual Property I, L.P. (Atlanta, GA)
Inventors: Dinesh Nadarajah (Austin, TX), Brad A. Medford (Austin, TX)
Primary Examiner: Hunter B Lonsberry
Assistant Examiner: James R Marandi
Attorney: Guntin Meles & Gust, PLC
Application Number: 11/724,809
International Classification: H04N 7/173 (20110101); H04N 7/12 (20060101); H04N 11/02 (20060101);